82 JOURNAL, NATURAL HIST. SOCIETY OF SIAM. Vol. I. 
10 (332). Dicrurus leucogenys. 7'he White-cheeked 
Drongo. 
at a Xs aes Vy A 
Siamese, wnustaustiaadim (Nok seng seo si t’hao). 
Description, Length, nearly 279mm. (11 in. ). Whole upper 
plumage grey, except the forehead, the ends of the first 5 or 6 
primaries, and the shafts of the wing and tail feathers, which 
are black. Lores, and sides of head, white. Lower plumage, pale 
grey, the under tail-coverts whitish. The tail is forked to the 
extent of about 35 mm. (14in.). In young birds, -the grey of 
the plumage is darker, and the white of the cheeks duller and 
smaller in extent. 
Tris, reddish brown to crimson lake. Bill and legs, black. 
In the Siamese name, the words si thao mean ‘ash- 
coloured ”—a quite appropriate term. 
Habits, etc. Very similar to those of the preceding species. 
I have only found this bird here from October to February, and it 
appears to occur rather sparingly. 
Distribution. Occurs also in Trang ( Robinson and Kloss ). 
This bird is not recorded by Gyldenstolpe, so its northern limits are 
unknown. 
11 (340). Dissemurus paradiseus. The Larger Racket- 
tatled Drongo. 
Siamese, ynuwautaviuda ( Nok seng seo hang buang. ) 
Description. Length, about 482 mm. (19in.), t+ of which the 
outer tail-feathers account for 305 mm. (12 in. ). Whole plumage 
black, largely glossed with blue. The under tail-coverts, as well as the 
under wing-coverts, are frequently tipped with white. 
Tris, red in adults, brown in the young (Oates). Bill, and 
legs, black. 
The outer pair of tail-feathers ot this bird are very striking— 
being produced beyond the end of the tail for about 152 mm. (6 in.), of 
which the basal half is practically nothing but shaft, while the termi- 
t This is the length of one of my birds. The longer of Gyldenstolpe’s 
two specimens measured only 425 mm. or about 16.79 in. 
